Heater Core
Hover over the image to zoom in
Share this:

CARQUEST Heater Core

Part No. 399133 Warranty Details  

See if this part fits a specific vehicle.

Check Vehicle Fit

Please note: Advance Auto Parts is proud to carry comparable exact-fit parts from multiple vendors, as such, the item you receive may be one of two quality brands. Both brands meet the same fitment requirements and are equal in their performance and specifications. Our heaters are designed and tested to meet or exceed OE specifications for form, fit, and function. Using premium quality materials and a clear focus on the highest heat transfer performance possible, our engineers have designed this heater to perform at the highest standards to ensure a warm cab environment during those cold winter months.
Back To Top
Core Height:7 7/8 in
Depth:1 1/4 in
Inlet Connection Type:5/8 in
Inlet Diameter:5/8 in
Outlet Connection Type:5/8 in
Outlet Diameter:5/8 in
Thickness:2 in
Width:6 1/4 in

Do you have questions about this product?


Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

1 Question | 1 Answer
Displaying question 1
  • Q:

    how do you get the heater core out
    Asked on 1/23/2012 by Anonymous

    1 answer



      Drain the antifreeze and coolant from your radiator. Remove the A/C-heater drain tube from the firewall (if applicable to your vehicle). Loosen the hose clamps on the heater core hoses. Then remove the hoses from the heater core if they’re accessible from the engine bay. After draining the antifreeze, lower the vehicle. Locate the access area for your particular heater core. On most vehicles, the heater core is accessible by removing the plastic panels under the dash. Once you’ve accessed the heater core, pay attention to its location and how the pipes are positioned. Remove the heater core mounting clamps and any remaining hoses. With rags at the ready for any accidental spills, remove the heater core. Clean up any spills and, if needed, dry the carpeting with a blow dryer. Check for any seals, O-rings, or other parts that may need to be transferred from the old heater core to the new one. For further assistance, please provide the year, make, model and engine size of the vehicle in question.

      Answered on 1/23/2012 by John the Car-Doc from AAP
Displaying question 1

Do you have a question about this product? 

Check out the specials in our monthly flyer.
Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.